Trauma Response

The ordinary human response to danger is a complex, integrated system of reactions, encompassing both body and mind. Threat initially arouses the sympathetic nervous system, causing the person in danger to feel an adrenalin rush and go into a state of alert.

Herman establishes the trauma response as a biologically integrated, multi-system event originating in sympathetic nervous system arousal, setting the foundational framework for the entire field.

Herman, Judith Lewis, Trauma and Recovery: The Aftermath of Violence—From Domestic Abuse to Political Terror, 1992thesis

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The vicious cycle of intense sensation/rage/fear locks a person in the biological trauma response. A traumatized individual is literally imprisoned, repeatedly frightened and restrained—by his or her own persistent physiological reactions and by fear of those reactions and emotions.

Levine argues that the trauma response becomes self-perpetuating through fear-potentiated immobility, whereby the organism’s own physiology sustains captivity long after the original threat has passed.

Levine, Peter A., In an Unspoken Voice: How the Body Releases Trauma and Restores Goodness, 2010thesis

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Trauma robs us of that freedom. Response flexibility is a function of the midfrontal portion of our cerebral cortex… One becomes stuck in predictable, automatic defensive reactions, especially to stressful stimuli.

Maté reframes the chronic trauma response as a neurological constraint on freedom, demonstrating that severity and developmental timing of trauma determine how thoroughly automatic defensive reactions supplant voluntary choice.

Maté, Gabor, The Myth of Normal: Trauma, Illness, and Healing in a Toxic Culture, 2022thesis

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Hypoarousal responses are equally a reaction to trauma, and that the common denominator in trauma may be autonomic dysregulation outside of the window of tolerance.

Ogden expands the understanding of trauma response beyond hyperarousal alone, demonstrating through paired case comparison that collapse and numbing are equally valid traumatic reactions unified by autonomic dysregulation.

Ogden, Pat, Trauma and the Body: A Sensorimotor Approach to Psychotherapy, 2006thesis

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We don’t know the extent to which they’ve been hijacked by our trauma response. Oftentimes we don’t even know we’ve experienced trauma at all.

Clayton identifies fawning as a covert trauma response that masquerades as positive social traits, arguing that its invisibility makes it among the most difficult responses to recognize and address therapeutically.

Clayton, Ingrid, Fawning: Why the Need to Please Makes Us Lose Ourselves—and How to Find Our Way Back, 2025thesis

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Levine’s approach suggests that to be ‘stuck’ in a ‘stressed-out’ or traumatized state is for the CRN to be stuck in a dysfunctional dynamic mode which is, in principle, fully reversible, and is not determined by the external situation.

Payne articulates the somatic experiencing position that the trauma response is a reversible dysregulation of the central regulatory nervous system rather than a fixed structural damage, grounding therapeutic optimism in neurophysiology.

Payne, Peter, Somatic experiencing: using interoception and proprioception as core elements of trauma therapy, 2015thesis

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Long after the event has ended, this adaptive survival response is often seen in our work with trauma survivors when dorsal vagal ‘leaving’ becomes a posttraumatic pattern in the search for safety.

Dana illustrates how the dorsal vagal collapse response, adaptive in the acute moment of extreme danger, becomes a chronic posttraumatic pattern that removes the survivor from awareness and relational connection.

Dana, Deb, The Polyvagal Theory in Therapy: Engaging the Rhythm of Regulation, 2018thesis

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Traumatized individuals are prone to respond to reminders of the past by automatically engaging in physical actions that must have been appropriate at the time of the trauma but that are now irrelevant.

Drawing on Janet, Ogden demonstrates that the trauma response persists as involuntary somatic action tendencies that are triggered by reminders and executed automatically, disconnected from present-moment relevance.

Ogden, Pat, Trauma and the Body: A Sensorimotor Approach to Psychotherapy, 2006supporting

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Trauma-related orienting tendencies become maladaptive if the client is subsequently prevented from orienting to additional information that confirms the absence of current threat.

Ogden shows how the orienting component of the trauma response ossifies into a perceptual bias, locking the individual into threat-confirming attention patterns that perpetuate somatic and cognitive dysregulation.

Ogden, Pat, Trauma and the Body: A Sensorimotor Approach to Psychotherapy, 2006supporting

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When faced with possible or actual threat, the body goes into an arrest response: we hold our breath, we become completely still, all extraneous activities stop. We focus attention on our senses, particularly vision and hearing.

Heller describes the startle-arrest response as the immediate organismic orienting that precedes the differentiation into fight, flight, or freeze — foregrounding the embodied sequencing of the trauma response.

Laurence Heller, Ph D, Healing Developmental Trauma How Early Trauma Affectssupporting

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Both subjects were assessed 4 weeks after the accident. The husband… reported having been completely healthy until the accident… recalled feeling extremely aroused and then becoming actively involved… in rescuing himself and his wife.

The husband-wife case study demonstrates that individual response strategy — hyperarousal versus hypoarousal — diverges dramatically even among survivors of the same traumatic event, illustrating the idiographic nature of trauma response.

Ogden, Pat, Trauma and the Body: A Sensorimotor Approach to Psychotherapy, 2006supporting

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When we perceive danger or sense that we are threatened, we become aroused. Arousal is the activity that energizes our survival responses.

Levine grounds the trauma response in the universal biology of arousal, framing it as the energetic engine of survival before examining what occurs when that energy fails to discharge.

Levine, Peter A., Waking the Tiger: Healing Trauma - The Innate Capacity to Transform Overwhelming Experiences, 1997supporting

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Clients were using addictive behaviours to propel themselves from a state of sympathetic arousal to a dorsal vagal response of numbing, and vice versa… these behaviours as adaptive.

Winhall reveals that addictive behavior functions as a self-regulatory attempt to modulate between the poles of the trauma response — sympathetic arousal and dorsal vagal shutdown — reframing addiction as adaptive polyvagal navigation.

Winhall, Jan, Treating Trauma and Addiction with the Felt Sense Polyvagal Modelsupporting

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While specific, trauma-related symptoms seem to fade over time, they can be revived, even years after the event, by reminders of the original trauma.

Herman documents the characteristic re-activation of the trauma response by environmental cues, establishing its susceptibility to conditioned triggering as a defining clinical feature.

Herman, Judith Lewis, Trauma and Recovery: The Aftermath of Violence—From Domestic Abuse to Political Terror, 1992supporting

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Structural dissociation of the personality is a theoretical construct that conceptualizes traumatic dissociation along the lines of action systems theory as an adaptive, neurobiologically organized response to trauma.

Ogden positions dissociative structural splitting as itself a neurobiologically organized form of trauma response, linking action systems theory to the compartmentalization of defensive and daily-life functioning.

Ogden, Pat, Trauma and the Body: A Sensorimotor Approach to Psychotherapy, 2006supporting

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The very definition of psychological trauma is complex, involving both characteristics of the event itself and subjective aspects of the individual’s response.

Lanius underscores that the DSM definition of trauma formally incorporates the individual’s subjective response as a necessary criterion, establishing response as constitutive of trauma itself rather than merely consequent to it.

Lanius, edited by Ruth A, The impact of early life trauma on health and disease the, 2010supporting

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Integration includes ‘postprocessing’ of the effects of the trauma—in other words, learning about, elaborating, integrating, and eventually turning off the powerful survival-related ‘stress’ machinery.

Ogden articulates the therapeutic goal as the deliberate deactivation of the survival machinery constituting the trauma response, through a staged integration process that restores contextual memory and somatic flexibility.

Ogden, Pat, Trauma and the Body: A Sensorimotor Approach to Psychotherapy, 2006supporting

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Both immobility and a significant exposure to fear or grief need to occur for (transient states of) tonic immobility to be converted to a paralysis/self-induced depressive feedback loop.

Levine, citing Kahlbaum, specifies the dual conditions — immobility plus sustained fear or grief — that convert an acute tonic immobility response into a chronic depressive-dissociative state akin to PTSD.

Levine, Peter A., In an Unspoken Voice: How the Body Releases Trauma and Restores Goodness, 2010supporting

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Dissociation of identity, memory and consciousness in the aftermath of trauma would seem to provide its own evidence of motivation, especially since dissociation often occurs during traumatic events and provides a means of immediate

Lanius frames peritraumatic dissociation as a motivated response providing immediate psychic protection, situating it within the broader ecology of trauma responses rather than as a passive sequela.

Lanius, edited by Ruth A, The impact of early life trauma on health and disease the, 2010aside

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No matter how much insight and understanding we develop, the rational brain is basically impotent to talk the emotional brain out of its own reality.

Van der Kolk identifies the intractability of the trauma response to verbal intervention alone, grounding therapeutic reform in the recognition that subcortical response systems are not amenable to top-down cognitive override.

van der Kolk, Bessel, The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma, 2014aside

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fight response… as form of hyperarousal… freeze response… fawning… as a trauma response

Clayton’s index entry schematically positions fawning alongside fight, flight, and freeze as coordinate trauma responses, each associated with specific arousal states and relational consequences.

Clayton, Ingrid, Fawning: Why the Need to Please Makes Us Lose Ourselves—and How to Find Our Way Back, 2025aside

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